Drip Source Tag, or DST, allows you to track the source of your subscribers (Facebook ads, for example) and tag them accordingly in Drip with one simple modification to your links. 

DST is a good choice for when you need to segment subscribers by lead source so you can compare the performance of subscribers from your various marketing channels.

DST works just like a UTM code – just add 

?dst=mytag to your link.

For example, www.example.com?dst=facebook would apply the “facebook” tag to any subscriber who clicked this link.

Note: If your link directs to a page not tagged with your Drip JavaScript, like an external landing page or shopping cart, you’ll need to insert your JavaScript into the page. You’ll also need to enable Cross-Domain Tracking in Drip.